c

com.spotify.scio.values

PairHashSCollectionFunctions

class PairHashSCollectionFunctions[K, V] extends AnyRef

Extra functions available on SCollections of (key, value) pairs for hash based joins through an implicit conversion.

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Visibility
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Instance Constructors

  1. new PairHashSCollectionFunctions(self: SCollection[(K, V)])

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
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  2. final def ##: Int
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  3. final def ==(arg0: Any): Boolean
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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    protected[lang]
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    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: AnyRef): Boolean
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  8. final def getClass(): Class[_ <: AnyRef]
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    Annotations
    @native() @HotSpotIntrinsicCandidate()
  9. def hashCode(): Int
    Definition Classes
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    Annotations
    @native() @HotSpotIntrinsicCandidate()
  10. def hashFullOuterJoin[W](sideInput: SideInput[Map[K, Iterable[W]]]): SCollection[(K, (Option[V], Option[W]))]

    Perform a full outer join with a SideInput[Map[K, Iterable[W]]].

    Perform a full outer join with a SideInput[Map[K, Iterable[W]]].

    Example:
    1. val si = pairSCollRight.asMultiMapSingletonSideInput
      val joined1 = pairSColl1Left.hashFullOuterJoin(si)
      val joined2 = pairSColl2Left.hashFullOuterJoin(si)
  11. def hashFullOuterJoin[W](rhs: SCollection[(K, W)]): SCollection[(K, (Option[V], Option[W]))]

    Perform a full outer join by replicating rhs to all workers.

    Perform a full outer join by replicating rhs to all workers. The right side should be tiny and fit in memory.

  12. def hashIntersectByKey(sideInput: SideInput[Set[K]]): SCollection[(K, V)]

    Return an SCollection with the pairs from this whose keys are in the SideSet rhs.

    Return an SCollection with the pairs from this whose keys are in the SideSet rhs.

    Unlike SCollection.intersection this preserves duplicates in this.

  13. def hashIntersectByKey(rhs: SCollection[K]): SCollection[(K, V)]

    Return an SCollection with the pairs from this whose keys are in rhs given rhs is small enough to fit in memory.

    Return an SCollection with the pairs from this whose keys are in rhs given rhs is small enough to fit in memory.

    Unlike SCollection.intersection this preserves duplicates in this.

  14. def hashJoin[W](sideInput: SideInput[Map[K, Iterable[W]]]): SCollection[(K, (V, W))]

    Perform an inner join with a MultiMap SideInput[Map[K, Iterable[V]]

    Perform an inner join with a MultiMap SideInput[Map[K, Iterable[V]]

    The right side is tiny and fits in memory. The SideInput can be used reused for multiple joins.

    Example:
    1. val si = pairSCollRight.asMultiMapSingletonSideInput
      val joined1 = pairSColl1Left.hashJoin(si)
      val joined2 = pairSColl2Left.hashJoin(si)
  15. def hashJoin[W](rhs: SCollection[(K, W)]): SCollection[(K, (V, W))]

    Perform an inner join by replicating rhs to all workers.

    Perform an inner join by replicating rhs to all workers. The right side should be tiny and fit in memory.

  16. def hashLeftOuterJoin[W](sideInput: SideInput[Map[K, Iterable[W]]]): SCollection[(K, (V, Option[W]))]

    Perform a left outer join with a MultiMap SideInput[Map[K, Iterable[V]]

    Perform a left outer join with a MultiMap SideInput[Map[K, Iterable[V]]

    Example:
    1. val si = pairSCollRight.asMultiMapSingletonSideInput
      val joined1 = pairSColl1Left.hashLeftOuterJoin(si)
      val joined2 = pairSColl2Left.hashLeftOuterJoin(si)
  17. def hashLeftOuterJoin[W](rhs: SCollection[(K, W)]): SCollection[(K, (V, Option[W]))]

    Perform a left outer join by replicating rhs to all workers.

    Perform a left outer join by replicating rhs to all workers. The right side should be tiny and fit in memory.

    rhs

    The tiny SCollection[(K, W)] treated as right side of the join.

    Example:
    1. val si = pairSCollRight  // Should be tiny
      val joined = pairSColl1Left.hashLeftOuterJoin(pairSCollRight)
  18. def hashSubtractByKey(rhs: SCollection[K]): SCollection[(K, V)]

    Return an SCollection with the pairs from this whose keys are not in SCollection[V] rhs.

    Return an SCollection with the pairs from this whose keys are not in SCollection[V] rhs.

    Rhs must be small enough to fit into memory.

  19. def hashSubtractByKey(sideInput: SideInput[Set[K]]): SCollection[(K, V)]

    Return an SCollection with the pairs from this whose keys are not in SideInput[Set] rhs.

  20. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  21. final def ne(arg0: AnyRef): Boolean
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  22. final def notify(): Unit
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    @native() @HotSpotIntrinsicCandidate()
  23. final def notifyAll(): Unit
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    @native() @HotSpotIntrinsicCandidate()
  24. val self: SCollection[(K, V)]
  25. final def synchronized[T0](arg0: => T0): T0
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  26. def toString(): String
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  27. final def wait(arg0: Long, arg1: Int): Unit
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    @throws(classOf[java.lang.InterruptedException])
  28. final def wait(arg0: Long): Unit
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    @throws(classOf[java.lang.InterruptedException]) @native()
  29. final def wait(): Unit
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    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
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    protected[lang]
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    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

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